/**

 * Copyright (c) Meta Platforms, Inc. and affiliates.

 *

 * This source code is licensed under the MIT license found in the

 * LICENSE file in the root directory of this source tree.

 *

 * @flow

 */

/**

 * In the future, we should cleanup callbacks by cancelling them instead of

 * using this.

 */

export function mountSafeCallback_NOT_REALLY_SAFE(

  context: any,

  callback: ?Function,

): any {

  return function () {

    if (!callback) {

      return undefined;

    }

    // This protects against createClass() components.

    // We don't know if there is code depending on it.

    // We intentionally don't use isMounted() because even accessing

    // isMounted property on a React ES6 class will trigger a warning.

    if (typeof context.__isMounted === 'boolean') {

      if (!context.__isMounted) {

        return undefined;

      }

    }

    // FIXME: there used to be other branches that protected

    // against unmounted host components. But RN host components don't

    // define isMounted() anymore, so those checks didn't do anything.

    // They caused false positive warning noise so we removed them:

    // https://github.com/facebook/react-native/issues/18868#issuecomment-413579095

    // However, this means that the callback is NOT guaranteed to be safe

    // for host components. The solution we should implement is to make

    // UIManager.measure() and similar calls truly cancelable. Then we

    // can change our own code calling them to cancel when something unmounts.

    return callback.apply(context, arguments);

  };

}

export function warnForStyleProps(props: any, validAttributes: any) {

  if (__DEV__) {

    for (const key in validAttributes.style) {

      if (!(validAttributes[key] || props[key] === undefined)) {

        console.error(

          'You are setting the style `{ %s' +

            ': ... }` as a prop. You ' +

            'should nest it in a style object. ' +

            'E.g. `{ style: { %s' +

            ': ... } }`',

          key,

          key,

        );

      }

    }

  }

}